EL MIRAGE FIELD, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042771) EL MIRAGE FIELD
From Year=1971 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	135	197	336	483	751	985	1191	1160	935	650	288	126	7238
40 S	135	332	668	1151	1903	2887	4079	5239	6173	6823	7112	7238	7238
45 M	49	95	201	338	596	835	1036	1005	785	496	167	45	5648
45 S	49	144	344	683	1279	2114	3150	4155	4940	5436	5603	5648	5648
50 M	10	33	97	209	444	685	881	850	635	347	76	10	4276
50 S	10	43	140	349	793	1477	2359	3208	3843	4190	4266	4276	4276
55 M	1	6	35	108	301	535	726	695	485	212	22	1	3128
55 S	1	7	43	151	452	987	1713	2408	2894	3106	3127	3128	3128
60 M	0	0	7	43	178	389	571	540	340	104	3	0	2176
60 S	0	0	8	51	228	617	1188	1728	2068	2172	2176	2176	2176

Corn Growing Degree Days
50 M	121	155	238	333	483	600	706	694	582	432	225	125	4694
50 S	121	276	514	847	1330	1930	2636	3331	3913	4345	4570	4694	4694

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Jul 28, 2006
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu